/*
 * Copyright 2022-present the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.cloud.function.utils;

import java.net.ServerSocket;

public final class SocketUtils {

	private SocketUtils() {
	}

	public static int findAvailableTcpPort() {
		try {
			ServerSocket s = new ServerSocket(0);
			int port = s.getLocalPort();
			s.close();
			return port;
		}
		catch (Exception e) {
			// ignore
		}
		return 0;
	}
}
